SNR490B

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#SNR490B

Description

SNR490B Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: SNR490B

Category	Type	Steel Grade
Steel Grades	Carbon Steel	SNR490B
		SNB22-1~5
		SNB23-1~5
		SNB24-1~5
		SN400A
		SN400B
		SN400C
		SN490B
		SN490C
		SNR400A
		SNR400B

Chemical composition(mass fraction)(wt.%) of the SNR490B

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.18-0.2	0.55	1.6	0.03	0.03
Mo	Al	Cu	Nb	Ti	V	Ce
						0.44-0.46
N	Co	Pb	B	Other

Mechanical Properties of steel grade SNR490B

Yield R_p0.2 (MPa)	Tensile R_m (MPa)	Impact KV/Ku (J)	Elongation A (%)	Reduction in cross section on fracture Z (%)	As-Heat-Treated Condition	Brinell hardness (HBW)
472 (≥)	558 (≥)	32	44	34	Solution and Aging, Annealing, Ausaging, Q+T,etc	233

Physical Properties of steel grade SNR490B

Temperature (°C)	Modulus of elasticity (GPa)	Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and	Thermal conductivity (W/m·°C)	Specific thermal capacity (J/kg·°C)	Specific electrical resistivity (Ω mm²/m)	Density (kg/dm³)	Poisson’s coefficient, ν
43	-	-			0.31	-
743	467	-	12.3	221		-
814	-	31	22.2			111	432

Heat Treatment of steel grade SNR490B

Heat treated : 1955°C - 1448°C

Technological Curves of steel grade SNR490B

No Curve

Available Suppliers

Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

Rfq.: sales@longhaisteel.com

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